Update build badge (#1378)

* Update build badge

* Update README.md

Author: siriak

README.md

@@ -1,6 +1,6 @@
-# The Algorithms - Python <!-- [![Build Status](https://travis-ci.org/TheAlgorithms/Python.svg)](https://travis-ci.org/TheAlgorithms/Python) -->
+# The Algorithms - Python
 [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg?logo=paypal&style=flat-square)](https://www.paypal.me/TheAlgorithms/100)&nbsp;
-[![Build Status](https://img.shields.io/travis/TheAlgorithms/Python.svg?label=Travis%20CI&logo=travis&style=flat-square)](https://travis-ci.org/TheAlgorithms/Python)&nbsp;
+[![Build Status](https://img.shields.io/travis/TheAlgorithms/Python.svg?label=Travis%20CI&logo=travis&style=flat-square)](https://travis-ci.com/TheAlgorithms/Python)&nbsp;
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 [![contributions welcome](https://img.shields.io/static/v1.svg?label=Contributions&message=Welcome&color=0059b3&style=flat-square)](https://github.com/TheAlgorithms/Python/blob/master/CONTRIBUTING.md)&nbsp;